Philippe Aghion, Ufuk Akcigit, Julia Cagé, William Kerr, 29 August 2016

The relationship between taxation and economic growth is complex, and relies in large part on the efficiency with which taxes are used. This column examines the impact of corruption on this relationship. The boost to welfare from reducing corruption is substantially larger than the marginal gains from optimising the tax rate for an existing level of government efficiency.

Ramon Xifré, 29 August 2016

Spain implemented a host of structural reforms following the Global Crisis. But questions remain about whether the current economic condition is due to the reforms or to ‘automatic’ adjustment in public and private sectors. This column sheds light on these questions by examining changes in a set of economic indicators following the introduction of the reforms. Five stylised facts are presented that suggest limitations of the reforms. Much of the current climate appears to reflect inherent limitations of the Spanish economy.

Brock Smith, Thomas McGregor, Samuel Wills, 28 August 2016

One of the biggest challenges in fighting poverty is to know where it is. This column describes a new way to measure poverty by using satellites to count people who live in darkness at night. This shows that the economic benefits of oil booms don’t trickle down to the very poor.

Brian Nolan, Max Roser, Stefan Thewissen, 27 August 2016

With inequality rising and household incomes across developed countries stagnating, accurate monitoring of living standards cannot be achieved by relying on GDP per capita alone. This column analyses the path of divergence between household income and GDP per capita for 27 OECD countries. It finds several reasons why GDP per capita has outpaced median incomes, and recommends assigning median income a central place in official monitoring and assessment of living standards over time.

Achyuta Adhvaryu, Namrata Kala, Anant Nyshadham, 27 August 2016

Energy-efficient technologies are an increasingly relevant policy priority, given growing consensus on the need to tackle climate change. This column examines the productivity benefits of adopting one such technology – LED lighting – for manufacturing firms in India. It finds that improved productivity resulting from LED lighting’s lower heat emissions makes adopting such technology far less costly than previous anticipated, particularly for labour-intensive firms in hot climates. 

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